Revert "Remove OwnPtr from Blink."

third_party/WebKit/Source/core/layout/svg/SVGResourcesCache.cpp

 /*
  * Copyright (C) Research In Motion Limited 2010. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  */
 
 #include "core/layout/svg/SVGResourcesCache.h"
 
 #include "core/HTMLNames.h"
 #include "core/layout/svg/LayoutSVGResourceContainer.h"
 #include "core/layout/svg/SVGResources.h"
 #include "core/layout/svg/SVGResourcesCycleSolver.h"
 #include "core/svg/SVGDocumentExtensions.h"
-#include <memory>
 
 namespace blink {
 
 SVGResourcesCache::SVGResourcesCache()
 {
 }
 
 SVGResourcesCache::~SVGResourcesCache()
 {
 }
 
 void SVGResourcesCache::addResourcesFromLayoutObject(LayoutObject* object, const ComputedStyle& style)
 {
     ASSERT(object);
     ASSERT(!m_cache.contains(object));
 
     const SVGComputedStyle& svgStyle = style.svgStyle();
 
     // Build a list of all resources associated with the passed LayoutObject.
-    std::unique_ptr<SVGResources> newResources = SVGResources::buildResources(object, svgStyle);
+    OwnPtr<SVGResources> newResources = SVGResources::buildResources(object, svgStyle);
     if (!newResources)
         return;
 
     // Put object in cache.
     SVGResources* resources = m_cache.set(object, std::move(newResources)).storedValue->value.get();
 
     // Run cycle-detection _afterwards_, so self-references can be caught as well.
     SVGResourcesCycleSolver solver(object, resources);
     solver.resolveCycles();
 
     // Walk resources and register the layout object as a client of each resource.
     HashSet<LayoutSVGResourceContainer*> resourceSet;
     resources->buildSetOfResources(resourceSet);
 
     for (auto* resourceContainer : resourceSet)
         resourceContainer->addClient(object);
 }
 
 void SVGResourcesCache::removeResourcesFromLayoutObject(LayoutObject* object)
 {
-    std::unique_ptr<SVGResources> resources = m_cache.take(object);
+    OwnPtr<SVGResources> resources = m_cache.take(object);
     if (!resources)
         return;
 
     // Walk resources and unregister the layout object as a client of each resource.
     HashSet<LayoutSVGResourceContainer*> resourceSet;
     resources->buildSetOfResources(resourceSet);
 
     for (auto* resourceContainer : resourceSet)
         resourceContainer->removeClient(object);
 }
@@ skipping 84 matching lines @@
     ASSERT(layoutObject);
 
     SVGResources* resources = cachedResourcesForLayoutObject(layoutObject);
     if (resources)
         resources->removeClientFromCache(layoutObject);
     SVGResourcesCache& cache = resourcesCache(layoutObject->document());
     cache.removeResourcesFromLayoutObject(layoutObject);
 }
 
 } // namespace blink